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Underwater colored image restoration method based on color correction and red channel priori

A color image and color correction technology, applied in the field of image processing, can solve the problem of underwater color image restoration methods seen in literature, etc., and achieve the effect of eliminating uneven illumination, eliminating light source color, and eliminating color distortion.

Active Publication Date: 2017-03-08
HOHAI UNIV CHANGZHOU
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Problems solved by technology

Patent search and the latest search of various scientific and technological documents at home and abroad show that there is no underwater color image restoration method that combines Retinex, color correction and red channel prior.

Method used

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  • Underwater colored image restoration method based on color correction and red channel priori
  • Underwater colored image restoration method based on color correction and red channel priori
  • Underwater colored image restoration method based on color correction and red channel priori

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Embodiment Construction

[0061] In order for the examiner to better understand the technical features, technical contents and technical effects of the present invention, the present invention will now be described in more detail in combination with examples. However, the drawings shown are only for better explaining the technical solution of the present invention, so the examiner is requested not to limit the protection scope of the claims of the present invention based on the drawings.

[0062] Such as figure 1 As shown, the underwater color image restoration method based on color correction and red channel prior includes the following steps:

[0063] (1) Convert the original color image from the RGB color space to the YIQ color space, and perform Retinex algorithm processing on the luminance component Y, and keep the other components I and Q unchanged, and then convert from the YIQ color space to the RGB color space to obtain Color image after removing uneven lighting.

[0064] The conversion form...

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Abstract

The invention provides an underwater colored image restoration method based on color correction and a red channel priori. A Retinex algorithm is used to eliminate non-uniform underwater illumination; a Lambert diffuse reflection model is combined with a gray world algorithm to estimate the color of a light source, light is introduced to improve an underwater attenuation imaging model, and the color of the light source is eliminated to realize color correction; and a prior method of a red color is used to restore a color corrected underwater image. Thus, the method provided by the invention can be used to restore the underwater colored image effectively, and eliminate non-uniform illumination and color distortion.

Description

technical field [0001] The invention relates to an underwater color image restoration method based on color correction and red channel prior, and belongs to the technical field of image processing. Background technique [0002] In recent years, with the increasing demand for underwater environment perception, underwater imaging technology has developed rapidly and is mainly used in underwater surveys, underwater robots, marine biological monitoring, and marine military. However, underwater imaging is very different from atmospheric imaging. Affected by the scattering and attenuation of underwater light, the collected underwater optical images have the characteristics of low contrast, serious fogging, and uneven illumination, which is difficult for manual interpretation of images. And automatic parsing brings great difficulties. Therefore, it is of great significance to study underwater optical image restoration technology and restore the true appearance of underwater images...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T3/00G06T7/90
CPCG06T2207/30181G06T3/04G06T5/00
Inventor 周妍蔡晨东李庆武霍冠英
Owner HOHAI UNIV CHANGZHOU
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